Apple just kicked Fortnite off the App Store

I wonder why Fortnite doesn't also make a WebAssembly version of Fortnight and deploy it on fortnite.com?

Then Apple would get jack shit from any sales there, so they can fight this battle with them while still offering access to the game for Apple users.

I'm probably missing some esoteric limitation Apple places on web-based games to cripple this use case.

Why doesn't everyone make a WebAssembly version of their game and host on their own servers? I'm pretty sure there are a thousand big problems with this idea.